That's up to the individual tournament. Caney Valley cancelled at approximately 3:00 in the afternoon the day prior to their tournament this year due to the storm in SE Kansas, but that was due to the aftermath of the storm not what was predicted to happen. I can only think of one time when the tournament cancelled the day of (early 90's). We all showed up for weigh-in and while some kids were trying to make weight coach got the call.